Invert scale factor on negative metrics

nearest.js

@@ -156,7 +156,8 @@ const metrics = [
   // mean angle
   (stats, q) => {
     const [ mean, scale ] = selectedSummary(stats, q);
-    return -vectorDot(mean.unit, q.unit) * scale
+    // divide by scale since we're negative
+    return -vectorDot(mean.unit, q.unit) / scale
   },
   // mean dist
   (stats, q) => {
@@ -172,7 +173,8 @@ const metrics = [
   // max inertia
   (stats, q) => {
     const [ , scale ] = selectedSummary(stats, q);
-    return -stats.inertia * scale;
+    // divide by scale since we're negative
+    return -stats.inertia / scale;
   },
   // custom
   (stats, q) => {
@@ -236,14 +238,19 @@ const mathDefinitions = {
   `,
 };
 
-const clusterScaleText = muArg => (state.clusterChoice > 0 && state.includeScale ? String.raw`\frac{\left|P\right|}{\left|${muArg}\right|}` : "")
+const includeScaleFactor = () => state.clusterChoice > 0 && state.includeScale
 
 const metricText = [
-  muArg => String.raw`${mathArgBest("min", "P")}\left[${clusterScaleText(muArg)}I\left(P\right) - 2\vec{q}\cdot ${clusterScaleText(muArg)}\vec{\mu}\left(${muArg}\right)\right]`,
-  muArg => String.raw`${mathArgBest("min", "P")}\left[-${clusterScaleText(muArg)}\cos\left(\angle \left(\vec{q}, \vec{\mu}\left(${muArg}\right)\right)\right)\right]`,
-  muArg => String.raw`${mathArgBest("min", "P")}\left[${clusterScaleText(muArg)}\left|\left| \vec{q} - \vec{\mu}\left(${muArg}\right) \right|\right|^2\right]`,
-  muArg => String.raw`${mathArgBest("min", "P")}\left[${clusterScaleText(muArg)}\angle \left(\vec{q}_{\perp}, \vec{\mu}\left(${muArg}\right)_{\perp} \right)\right]`,
-  muArg => String.raw`${mathArgBest("min", "P")}\left[-${clusterScaleText(muArg)}I\left(P\right)\right]`,
+  muArg => String.raw`
+    ${mathArgBest("min", "P")}\left[
+      ${includeScaleFactor() ? String.raw`\frac{\left|P\right|}{\left|${muArg}\right|}\left(` : ""}
+      I\left(P\right) - 2\vec{q}\cdot \vec{\mu}\left(${muArg}\right)
+      ${includeScaleFactor() ? String.raw`\right)` : ""}
+    \right]`,
+  muArg => String.raw`${mathArgBest("min", "P")}\left[-${includeScaleFactor() ? String.raw`\frac{\left|${muArg}\right|}{\left|P\right|}` : ""}\cos\left(\angle \left(\vec{q}, \vec{\mu}\left(${muArg}\right)\right)\right)\right]`,
+  muArg => String.raw`${mathArgBest("min", "P")}\left[${includeScaleFactor() ? String.raw`\frac{\left|P\right|}{\left|${muArg}\right|}` : ""}\left|\left| \vec{q} - \vec{\mu}\left(${muArg}\right) \right|\right|^2\right]`,
+  muArg => String.raw`${mathArgBest("min", "P")}\left[${includeScaleFactor() ? String.raw`\frac{\left|P\right|}{\left|${muArg}\right|}` : ""}\angle \left(\vec{q}_{\perp}, \vec{\mu}\left(${muArg}\right)_{\perp} \right)\right]`,
+  muArg => String.raw`${mathArgBest("min", "P")}\left[-${includeScaleFactor() ? String.raw`\frac{\left|${muArg}\right|}{\left|P\right|}` : ""}I\left(P\right)\right]`,
 ].map(s => muArg => TeXZilla.toMathML(s(muArg)));
 
 const muArgs = [